28419080

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1447}}^1$

素因数の和:1949

約数の個数: 32

約数和(自身を含む): 64117440

約数和(自身を除く): 35698360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1447, 1964, 2455, 2894, 3928, 4910, 5788, 7235, 9820, 11576, 14470, 19640, 28940, 57880, 710477, 1420954, 2841908, 3552385, 5683816, 7104770, 14209540, 28419080]

約数ペア:

[(1, 28419080), (2, 14209540), (4, 7104770), (5, 5683816), (8, 3552385), (10, 2841908), (20, 1420954), (40, 710477), (491, 57880), (982, 28940), (1447, 19640), (1964, 14470), (2455, 11576), (2894, 9820), (3928, 7235), (4910, 5788)]